Vehicle Routing in complex environment Coventry City Council waste collection department serves thousands of customers. Given the list of customers (post codes) and demands/volumes of waste to be collected, it is required to design collection routes to pick up the waste on regular bases (once or twice per week). Some of the customers have time windows for the waste to be collected (e.g. schools have to be visited only when the pupils are not there). The vehicle routing problem (VRP) is an NP-hard combinatorial problem and existing algorithms allow finding good quality solutions for only small instances. The objective of the project is to investigate possible options of generating input data for the real life VRPs mentioned above, and influence of the data on the robustness of the VRP algorithms. Existing software allows to calculate distances and travel times between given points. It is obvious that time matrices depend on the flows of traffic in the city and are subject to disruptions. The objective of the mini-project is to suggest a way/algorithm of calculating time matrices and investigate the influence of this data on the quality of VRP solutions.